Middle School Math Teacher, Part-time

Faculty / Part-Time

Lesley Ellis School, Arlington, MA

Lesley Ellis School

Seeks a Part Time (50%)

Middle School Math Teacher

(Start date August 24,  2024)

Lesley Ellis, an independent preschool-grade 8 school, seeks experienced math teacher candidates who are adept at supporting students in acquiring and achieving a high level of interest and mastery in mathematical skills, analysis, and critical thinking.

Candidates should be able to foster and maintain academic engagement and have a strong commitment to an anti-bias approach. We are looking for an individual who will bring expertise and enthusiasm to teaching and have the desire to work closely with teammates to ensure an enriching, engaging, and challenging school experience. 

Respecting and embracing differences has been at the core of a Lesley Ellis education since the school’s early days. Our anti-bias curriculum is rooted in a developmental model of learning that engages children’s innate desire to observe, question, consider, and eventually think deeply about complex interpersonal and societal issues. In 2005, we received the Leading Edge Award for Equity and Justice from the National Association of Independent Schools, and we continue to learn and work against systems of injustice, including racism, by practicing behavior that demonstrates appreciation for multiple perspectives and engaging in conversations and actions that confront bias at all developmental levels.

Responsibilities include:

  • Implement an innovative, creative, and challenging mathematics curriculum for middle school students (including Algebra 1) in collaboration with the middle school mathematics team.
  • Oversee supported study periods for students who need additional help with mathematics.
  • Establish relationships with all students that are based on respect for individual learning styles, developmental stages, and temperaments.
  • Foster open communication, decision-making, and problem-solving channels between parents, faculty, and administration.
  • Write progress reports two times per year.


  • Experience teaching math required.
  • Experience with Connected Mathematics Project (CMPS) preferred.
  • M.A. or M.Ed in math or middle school education preferred.
  • Commitment to anti-bias education.
  • Collaborative nature.
  • Genuine enthusiasm for working with adolescents. 
  • Willingness and desire to work with math students of all abilities.

School year position. Competitive salary and benefits.

Interested candidates should send a cover letter and resume to: 

Deanne Benson, Head of School



Lesley Ellis School is an equal opportunity employer.


Lesley Ellis School

Arlington, MA
Early Childhood, Elementary, Middle School
All Gender